Underlay suitable for the stretch-fit installation of carpets.

Features and benefits:

  • Crumb rubber.
  • End use classification (to BS 5808): HC/U, heavy contract use.

General information

Uniclass 2015

Pr_35_57_11_74 Rubber crumb underlaysPrimary


M50/170 Carpeting

M50/25 Carpeting

Product range

Carpet Underlays

Specification data - Rubber crumb underlays

Product Reference

Treadmore, TATRM08013

Standard product features

Nominal square weight:

3100 g/m².

Roll area:

10.96 m² (1.37 x 8 m).

Nominal roll weight:

34 kg.

Nominal thickness:

7.95 mm.

Mean original thickness from nominal thickness (maximum 12%):


Difference between maximum and minimum original thickness (maximum 3 mm):

0.5 mm.


No objectionable odour.

Colour/ backing:

Green/ Bacloc backing.

Impact sound reduction (Delta Lw):

32 dB.

Emissions (US Carpet and Rug Institute):

Meets low VOC emission criteria.

Thermal resistance:

1.03 togs.

Antimicrobial and mildew resistance:


Technical characteristics:

  • Work of compression (minimum 50 J/m²): 87 J/m².
  • Retention of work of compression (minimum 40%): 100%.
  • Compression after dynamic loading: 2.7 mm.
  • Loss in thickness after dynamic loading (maximum 15%): 5.5%.
  • Loss in thickness after static loading (maximum 15%): 3.9%.
  • Breaking strength (length/ width) minimum 40N: 374/ 179N.
  • Extension under force (length/ width) maximum 10% at 40N: 2/ 1%.
  • Resistance to cracking (not greater than 50 mm): Pass.


  • Hot metal nut test: Low radius of effects of ignition.
  • Russian GOST FR Test Classification: KM5.

Third party certifications

  • CRI: Green Label Plus

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